As for Hevi-Shot. I am not sure that you can buy it factory loaded for a 10ga. I know that you can buy Nitro, but I don't have the money and don't really see a reason right now to spend $50+ for five shells.
So, I will be shooting lead.
The reason I was considering a Comp-N-Choke for the 10ga. is because I have yet to find anything that wasn't custom that had a better pattern than my BPS with the Comp-n-choke on it.
It seems that most people who use the Rhino choke use Nitro loads. But I don't see myself using them. So, I am looking for results with regular factory loaded shells.